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			97 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			97 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2013 the V8 project authors. All rights reserved.
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| // Redistribution and use in source and binary forms, with or without
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| // modification, are permitted provided that the following conditions are
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| // met:
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| //
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| //     * Redistributions of source code must retain the above copyright
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| //       notice, this list of conditions and the following disclaimer.
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| //     * Redistributions in binary form must reproduce the above
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| //       copyright notice, this list of conditions and the following
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| //       disclaimer in the documentation and/or other materials provided
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| //       with the distribution.
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| //     * Neither the name of Google Inc. nor the names of its
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| //       contributors may be used to endorse or promote products derived
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| //       from this software without specific prior written permission.
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| //
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| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 
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| a = [1];
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| Object.defineProperty(a, "1", {writable:false, configurable:false, value: 100});
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| assertThrows("a.unshift(4);", TypeError);
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| assertEquals([1, 100, 100], a);
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| var desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.writable);
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| assertEquals(false, desc.configurable);
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| 
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| a = [1];
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| var g = function() { return 100; };
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| Object.defineProperty(a, "1", {get:g});
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| assertThrows("a.unshift(0);", TypeError);
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| assertEquals([1, 100, 100], a);
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| desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.configurable);
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| assertEquals(g, desc.get);
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| 
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| a = [1];
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| var c = 0;
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| var s = function(v) { c += 1; };
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| Object.defineProperty(a, "1", {set:s});
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| a.unshift(10);
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| assertEquals([10, undefined, undefined], a);
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| assertEquals(1, c);
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| desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.configurable);
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| assertEquals(s, desc.set);
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| 
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| a = [1];
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| Object.defineProperty(a, "1", {configurable:false, value:10});
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| assertThrows("a.splice(1,1);", TypeError);
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| assertEquals([1, 10], a);
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| desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.configurable);
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| 
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| a = [0,1,2,3,4,5,6];
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| Object.defineProperty(a, "3", {configurable:false, writable:false, value:3});
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| assertThrows("a.splice(1,4);", TypeError);
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| assertEquals([0,5,6,3,,,,], a);
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| desc = Object.getOwnPropertyDescriptor(a, "3");
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| assertEquals(false, desc.configurable);
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| assertEquals(false, desc.writable);
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| 
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| a = [0,1,2,3,4,5,6];
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| Object.defineProperty(a, "5", {configurable:false, value:5});
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| assertThrows("a.splice(1,4);", TypeError);
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| assertEquals([0,5,6,3,4,5,,], a);
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| desc = Object.getOwnPropertyDescriptor(a, "5");
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| assertEquals(false, desc.configurable);
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| 
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| a = [1,2,3,,5];
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| Object.defineProperty(a, "1", {configurable:false, writable:true, value:2});
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| assertEquals(1, a.shift());
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| assertEquals([2,3,,5], a);
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| desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.configurable);
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| assertEquals(true, desc.writable);
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| assertThrows("a.shift();", TypeError);
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| assertEquals([3,3,,5], a);
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| desc = Object.getOwnPropertyDescriptor(a, "1");
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| assertEquals(false, desc.configurable);
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| assertEquals(true, desc.writable);
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| 
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| a = [1,2,3];
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| Object.defineProperty(a, "2", {configurable:false, value:3});
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| assertThrows("a.pop();", TypeError);
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| assertEquals([1,2,3], a);
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| desc = Object.getOwnPropertyDescriptor(a, "2");
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| assertEquals(false, desc.configurable);
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